# I2S microphone

**Type:** Product page · **SKU:** CE10259 · **Brand:** [Core Electronics](https://core-electronics.com.au/brands/core-electronics-australia)
**Page:** https://core-electronics.com.au/i2s-microphone-inmp441.html ([markdown](https://core-electronics.com.au/i2s-microphone-inmp441.html.md))

Add a simple microphone to microcontroller or GPIO based projects

## Pricing

- **Price:** $12.30 (inc GST) — $11.18 AUD, exc GST
- **Quantity discounts:** 5+ $10.95 (exc GST) · 15+ $10.62 (exc GST)

## Availability & dispatch

- In stock, ships same business day if ordered before 2PM (Australia/Sydney).
- We can dispatch 31 today; more stock is typically available with a 8–12 day lead time.

## Description

A digital audio sensor designed for sound capture in [microcontroller-based projects](https://core-electronics.com.au/development-boards.html). By providing a direct I2S (Inter-IC Sound) output, this module translates acoustic waves into digital data without the need for external pre-amplifiers or bulky analog-to-digital converters.

Traditional analog microphones often suffer from signal degradation and electrical noise, especially when routed near Wi-Fi antennas or motor controllers. This MEMS unit eliminates these frustrations by performing the analog-to-digital conversion directly on-chip, delivering a clean, noise-resistant signal straight to your dev-board using a universal protocol.

### Features

- **Enjoy interference-free audio** by utilising a direct digital I2S output that bypasses the hiss and hum of noisy analog-to-digital conversion stages.
- **Capture crystal-clear voice commands** and subtle environmental sounds with a high 61 dB(A) signal-to-noise ratio, providing the clarity needed for speech recognition algorithms.
- **Simplify your power budget** with an ultra-efficient design that draws less than 2mA of current, making it perfect for "always-on" listening in portable projects.
- **Integrate with ease** into 3.3V logic systems, ensuring direct compatibility with modern development boards without the need for level shifting.
 
### Specifications

 | Property | Specification |
|---|---|
| Interface Type | I2S (Inter-IC Sound) |
| Directionality | Omnidirectional |
| Operating Voltage | 3.3V (1.6V to 3.6V Range) |
| Operating Current | <2mA |
| Signal-to-Noise Ratio (SNR) | 61 dB(A) |
| Sensitivity | -26 dBFS |
| Frequency Response | 50 Hz to 15 kHz |
| Form Factor | Bottom-port MEMS Module |

### Product includes

- I2S Microphone Module (INMP441)
- 1x6 Male Header

## Images

- [Product image 1](https://core-electronics.com.au/media/catalog/product/c/e/ce10259_microphone-module.jpg)